As a scientist, you have been studying giraffes and the ways they have evolved. In preparation to speak at a conference, you will be focusing on their physical changes over time, and you would like to include information about their height and build. What role did natural selection play in the evolution of giraffe necks?

Answer:

As time progressed, to reach the tops of trees to eat their leaves, the giraffe's necks grew longer. Those without long necks could not reach the leaves and began to die off. This allowed only giraffes with long necks to survive. Eventually, their necks grew to the length they are now.

Hope this helps!

Answer:

The accepted theory of giraffe evolution is that the longest-neck giraffes have been passed on to their genes by natural selection and the animal that we see now takes millions of years.

Explanation:

Which scenario best supports Lamarck's theory of transformation?

A) The ancestor of flightless birds was capable of flight, but rarely flew. Over time, each generation was born with smaller wings and did not fly.

B) groups of snakes competed for the same resources. One evolved to hunt for food in rockly area, while the other hunted in the forest

C) Turtles with harder shells reproduced and their offspring inherited the trait

D) Comparisons of fossils in the rock record suggest that marine mammals may have evolved from land mammals.

heart rate during swimming for a 13 year old female

heart rate during dancing for a 13 year old female

heart rate during jogging for a 13 year old female

BPM

When tornado conditions are favorable it is called a ___________

a
watch
b
occurrence
c
warning
d
imminent threat

HELP PLEASE
How would a base on the Moon help enable manned space exploration to Mars?

Which are the two main sources of dissolved oxygen in the ocean?
A) surface air and ocean plants B) Warm water vents and Earth’s core
C) Underwater volcanoes and earthquakes D) Animal respiration and decomposition

Explain what CRISPR is

If you found a new plant and its seeds had tiny hooks or barbs, what kind of seed dispersal would you think the plant depended on?


-an animal eating the seeds and depositing them in a different area
-water washing the seeds to a different area
-wind blowing the seeds to a different area
-the plant’s seeds sticking to an animal’s feathers, skin, or fur

What are some benefits of CRISPR?

HELP PLS NEED ASAP
NO LINKS

The diagram shows variations of Galápagos Island finches that formed over many generations.



What most likely caused the variations in these finches?
A
the temperatures on the islands

B
the available food on the islands

C
the available water on the islands

D
the number of mates on the islands

What caused Hurricane Katrina to strengthen before making landfall in the Gulf Coast States?

a
mild water over the Gulf
b
cold waters over the Gulf
c
warm waters over the Gulf
d
La Nina

Match the terms to their definition. 1. evolution genetic change in a population or species over many generations 2. lineage group of related organisms that share features and characteristics 3. macroevolution evolution at or below the species level 4. microevolution the expression of a genetic trait, or what the trait looks like 5. phenotype evolution above the species level 6. species continuous line of descent

Im on m last exam on edg 2021 first to answer with Who hoo Gets brainliest

How much salt would be needed to create a 15% solution in 100 mL of water?
30 grams
15 grams
7.5 grams
25 grams

Assignment: The World’s Energy Exploration

The amount of energy available in the form of nonrenewable resources is finite. You can personally make a difference in making sure that the world continues to have enough energy to supply electricity to everyone who needs it. Today’s assignment is an opportunity to do research into ways that you can make an impact.

Your research will focus on creating a plan that you want to present to one of the following:
a) your family
b) a club or team that you are a part of
c) a community organization like your church or school

The purpose of your plan is to see the world’s energy last a long time. There are a couple of categories to consider, such as different ways to do the following things:
a) Use renewable resources (example: adding solar panels to a building)
b) Conserve energy (example: reducing the amount of electricity used)
c) Reduce, reuse, and recycle (example: planning a recycling drive)
d) Add “green spaces” (example: growing vegetables in a garden)

You need to find three websites related to your idea. Look for other individuals or groups that have accomplished a similar goal. Once you have found your websites, answer the following questions. Number each question and make sure to write your answers in complete sentences.

1. What project do you want to propose and who do you want to participate?
2. What are the three websites you found that helped you choose a project and/or described other people doing similar projects?
3. After reading their stories and thinking about your own ideas, describe your idea for your project. Think of your answer as your presentation of your idea to your group. Make sure to tell them what you want to accomplish and why it is important.
4. In your research, find a difficulty that others faced that you might need to consider. Explain the issue and how it might impact your plan.
5. Choose one story from your research that you found most inspiring. Share a quotation and explain why this was meaningful.

What can you do to help reduce the amount of air pollution?

The ulna, radius, and humerus are the three bones of the arm. The elbow is formed where these bones meet. Which is another name for the elbow?

joint
tendon
cartilage
bone marrow

Which level of organization is this?



A
community

B
organism

C
population

D
abiotic

question in picture...

In which of the following scenarios are environmental conditions most likely responsible for the difference in the growth of two different animals?

A.
Two horses of the same age that live in the same stable grow to different adult heights.
B.
Two cows of different breeds that live in the same pasture grow to have different adult weights.
C.
An adult male fish is larger in size than an adult female fish of the same species.
D.
An adult deer in a lush forest is larger than an adult deer in a drought-affected area.

Why is the Chesapeake Bay so important?

What happens to the matter in krill when it is eaten by a seal?

A.
After it passes through the seal unchanged, it is used by the seal for growth or energy.
B.
After it passes through the seal unchanged, it exits the seal, remaining unused.
C.
After it is broken apart and rearranged, it is used by the seal for growth or energy.
D.
After it is broken apart and rearranged, it exits the seal, remaining unused.

The table shows the percentage of different colors of rats in a population that survive to reproduce.

RATS BY COLOR
Color of Rat Portion of Population to Reproduce (%)
Black 25
Gray 30
White 15
Black spots 5
Gray spots 10
White spots 45

According to the table, which element of natural selection will have the most significant effect on the total population of rats?
A
the low percentage of inheritance of black spots

B
the high percentage of inheritance of white spots

C
the high percentage of inheritance of white fur

D
the low percentage of inheritance of gray fur

Which organelle is shown by X

Choose the correct plural form for each word.

staff sergeant:


sister-in-law:


football:

What is one connection between these two sections?
A. Both sections describe the four nucleotides that make up the DNA code.
B. Both sections highlight the difference between point mutations and base-pair insertions.
C. The introduction states that gene mutations can be categorized into two types, while the final section describes the categories.
D. The introduction states that gene mutations can cause diseases, while the final section lists some of those diseases.

PLEASE HELP 15 PTS AND I WILL GIVE BRAINLIEST
Describe what will happen if an offspring inherits a recessive allele.
A. That trait will never show up in the offspring
B. That trait will always show up in the offspring
C. That trait will sometimes show up in the offspring
D. A recessive trait will show

plz help..

15. What is an ARRAY?

16. The part of the solar panel that generates electricity is made of ______.

17. What generates the power in your home?

18. What is special about the O’Shea Solar Park?

___________________ is the process of plants releasing oxygen into the environment?


Transpiration

Respiration

Photosynthesis

Oxygenation

Present-day India is in South Asia, at the northern end of the Indian Ocean. What evidence found in India matches that of other locations?