1. Explain how the atomic number and mass number of an atom can be used to determine the number of
electrons and of neutrons respectively.

Because the total of neutron and proton/electron is the atomic mass. So if you wanna find proton/electron and you know the neutron, just minus the atomic number with the neutrom and you will get the proton

Here if you need the formula

Atomic number = Total neutron + Total proton or electron

how sponges are successful?​

Biology

1 Explain the Diffrent Between aldose and Ketose monosaccharides

2 List All Liquids And Explain How They Foremd​

What are bio molecules made of?

It was field day at school. The sun was bright and the temperature high. Most of the students wore light colored T-shirts to stay cool
because dark colors
most wavelengths found in white light.
A)
absorb
B)
reflect
refract
D
subtracts
Hint
You can get a sunburn in the snow!
B
Motions Forces and Energy
Hint

The diagram below represents a planet revolving in an elliptical orbit around a star.
Star
Planet →
As the planet makes one complete revolution around the star, starting at the position shown, the gravitational attraction between the star and the planet will:
O Decrease, then increase.
o Increase, then decrease.
Continually decrease
Remain the same

Molecular anthropology ___________________ Question 1 options: uses genetic analysis of a DNA sequence to assess evolutionary links. is the specialty of the most important member of an archaeological excavation project. studies early hominins through fossil remains. uses microscopic phytolithic analysis to study molecular evolution. uses archaeological survey techniques to gather its data.

Describe the connection between limiting factors and invasive spicies

What if cellular respiration did not occur

Adaptations that help
an
organism survive appear quickly.
A. True
B. False

What is a destarched plant

need help Define population.

Question 1 options:

A group of all living things in a given area


A group of organisms that are the same species interacting with each other in a given area.


All of the living and non-living organisms in a given area


Areas with similar climate and flora and fauna

Question 2 (2 points)
What does the x-axis represent?

Question 2 options:

Time


Starting population of Fog Beetles


The number of organisms in the population


exponential growth

Question 3 (2 points)
What does the y-axis represent?

Question 3 options:

Time


Starting population of Fog Beetles


The number of organisms in the population


exponential growth

Question 4 (2 points)
Move the growth rate r slider to its lowest value of 0.1, then gradually increase it. What happens to the population size as you increase the growth rate (the r slider)?



Question 4 options:

As the growth rate increases, the population size moves up and down rapidly.


As the growth rate increases, the population size stays the same.


As the growth rate increases, the population size decreases more rapidly. The slope flattens out.


As the growth rate increases, the population size increases more rapidly. The slope becomes steeper.

Question 5 (2 points)
Set the growth rate at r = 0.5, and make N0 = 500 individuals. What is N when t = 8? To answer this question, you will have to rescale the graph so that you can see the higher values of N: Click on the gear icon and change the Max value of Pop. (N0) to 30,000.

Question 5 options:

12,182


30,000


27,299


500

Question 6 (2 points)
The initial values for the fog beetle population are as follows:

Initial # of fog beetles (N0) = 2,000,

birth rate=.88 (b)

death rate= .05 (d)



What is the calculated population growth rate (r) for the beetles?

Growth Rate(r) = birth rate (b)- death rate (d)

Question 6 options:

.88


.05


.83


.94

Question 7 (2 points)
After 5 years, what would be the total population of fog beetles?

**write the number in the following format xxx,xxx** Don't include a label

Question 7 options:
Question 8 (2 points)
The growth rate you entered into the model predicts that the population growth of fog beetles will start to slow down and decline as time continues.

Question 8 options:
True
False
Question 9 (2 points)
What are two possible limiting factors that might cause the population of fog beetles to level off?

Question 9 options:

Disease and predators


habitat loss and more beetles immigrating to the desert


Natural disasters and more beetles immigrating to the desert


None of the above

Question 10 (2 points)
If a parasite began attacking the fog beetles increasing their death rate to .12, how would this change alter the growth rate of the fog beetles (remember r=b-d, use the information from the initial question about fog beetles)?

Question 10 options:

An increase in death rate would cause the growth rate to decrease to .76


An increase in death rate would cause the growth rate to increase to .98


An increase in death rate would not cause a change to the growth rate

Question 11 (2 points)
How would this new growth rate influence the population size at time t = 10?

(The old growth rate was .83 )

Question 11 options:

The new growth rate would result in a decrease of 2 million fog beetles over the course of 10 years.


The new growth rate would result in an increase of 4 thousand fog beetles over the course of 10 years.


The new growth rate would result in a decrease of about 4 million fog beetles over the course of 10 years.


There would be no change to the population after 10 years.

Question 12 (2 points)
The kudu population will reach its carrying capacity right around the 35 year mark (You may need to change the max value of t and adjust the max value of k to optimize the graph display).

Question 12 options:
True
False
Question 13 (2 points)
Assume a new plot of land is added to the park, increasing the carrying capacity to 350 kudu. How will the population size change?

Question 13 options:

The population would continue to grow at the same rate until it hit 200 and then it would grow at a slower rate until it reached 350 kudu


The population would continue to grow until it hit the new carrying capacity.


It would provide more space for the trophy hunters to move in and hunt the kudu.

Question 14 (2 points)
Reset the carrying capacity back to 200. Trophy hunters move into the area, leading to an increased death rate, which decreases the growth rate r to 0.15. How would this impact the population size? (Hint: Look at when the population reaches its carrying capacity, look at the T value)

Question 14 options:

The kudu would grow at a very slow rate for 30 years and then the growth rate would slow down.


It would take about 25 more years for the kudu to reach their carrying capacity.


The population would reach its peak in the first 10 years


none of the above

Describe the process that water goes through when it begins as surface water being evaporated to ending as groundwater. - BE DETAILED AND SPECIFIC with this answer.

Which of the following is a characteristic of the plasma membrane? It is made up of one layer of phospholipids. It doesn't contain any molecules aside from phospholipids. The outward-facing phospholipid tails give it a rough quality. It allows some molecules to pass through but prevents others from doing so.

which action would most likely cause air pollution

How many holes are in the human body?

Project due today.

I NEED HELP ASAP!!!

Is Pepsi Homogenous/Heterogenous or Element/Compound?

Is Food coloring in water Homogenous/Heterogenous or Element/Compound?

Is Copper Penny Homogenous/Heterogenous or Element/Compound?

Is Sulfur Homogenous/Heterogenous or Element/Compound?

What happens when a molten rock comes in contact with the ocean

refers to the Linnaeus' method of naming species
using a unique two-word name made up of the genus and species name.
O cell organelle
O level of cladistics
O binomial nomenclature
O method of taxonomy

In guinea pigs, the allele for black fur (B) is dominant over the allele for brown (b) fur. A black guinea pig is crossed with a brown guinea pig, producing five F1 black guinea pigs and six F1 brown guinea pigs. a. How many copies of the black allele (B) will be present in each cell of an F1 black guinea pig at the following stages: G1, G2, metaphase of mitosis, metaphase I of meiosis, metaphase II of meiosis, and after the second cytokinesis following meiosis

Which of the following statements about the ice ages is true? a. An ice age will never come again. b. The causes of ice ages are well known. c. During the ice ages, icy glaciers covered much of the continents. d. There were no living organisms during the ice ages.

Which of the following does NOT influence population change?
a. immigration rate
b. birth rate
c. emigration rate
e. death (mortality) rate
f. interest rate

HELLP!!! What do all eukaryotic cells
have in common?

Why is fertile soil a valuable resource?
Humus is present in it
It takes a very long time to make it
It is quickly being renewed
There is a large amount of it

What is the definition for vacuole and Chlorophyll?

Due Tuesday
Write the name of the root tissue on the corresponding line. What are the two ways root cells grow?

Which wave has a wavelength that is most likely seen as red light? 690 nm O A 580 nm n O B. 490 nm O C. M M m 440 nm m O D. M​

The diagram below represents a single celled organism A dividing by mitosis to form cells B and AB and C all produce protein X What can best be interred from this observation



HELPPPPPPP

1.Choose the statement that is true about your cells and DNA code.
Group of answer choices

All of your cells have all of the DNA code for your whole body

Each type of cell (hair cell, skin cell, muscle cell, etc.) has its own special kind of DNA

2.True or False: DNA is always turned on all the time in all of your cells.
Group of answer choices

True

False

3.What does DNA do in living things?
Group of answer choices

DNA makes lipids

DNA builds the cell wall

DNA codes for traits (physical features)

PLEASE HELP ME !!!!!!!!

What is the reaction for photosynthesis?​