1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yarga [219]
3 years ago
15

Idl this plzz help EASY!!!

Biology
2 answers:
vazorg [7]3 years ago
6 0

Answer:

The answer is movement toward or away from Earth.

In astronomy, it is said that the Doppler effect tells Astronomers whether a star, or galaxy, is approaching or going away from us. It turns out the farther a galaxy is away, the faster it gets away from us - meaning that the Universe is expanding.

hope this helps :)

AlladinOne [14]3 years ago
3 0

The answer is a movement toward and away from earth

Hope this helps .please add brainlist

You might be interested in
How are groundwater supplies initially impacted during a drought
frozen [14]

Answer:

A

Explanation:

At the start of a drought, groundwater may not be noticeably lower (not B). Only aquifers near the ocean may become contaminated with salt water (not C). And it is definitely not D.

6 0
2 years ago
Read 2 more answers
A zygote forms when a sperm cell penetrates and fertilizes an egg. <br> a. True<br> b. False
Georgia [21]

Answer:

the answer is true. a zygote does

4 0
3 years ago
Differentiate Humoral immunity vs cell mediated immunity
trapecia [35]

Answer:

Cell-mediated immunity develops through a network of interactions that results in defense against microorganisms that survive within phagocytes or other cells. The response is initiated by the recognition of intracellular microorganism antigen by T cells through the histocompatibility complex. In the CD8 response, only the target cell carrying the class I associated antigen can be lysed or induced to apoptosis. In another mechanism of the cellular response, CD4 + Th1 T cells activate, for example, cytokine-infected macrophages such as IFN. When a pathogen resists the effects of activated macrophages, chronic infection may develop.

The hormonal immunity response leads to the destruction of extracellular microorganisms and prevents or decreases the spread of intracellular cells by neutralizing, opsonizing and activating the complement system.

4 0
3 years ago
Construct a concept map that shows how a population of bacteria can develop resistance to antibiotics.
Vsevolod [243]

The attached picture shows how bacteria gain antibiotic resistance. Firstly, a few individuals attain a beneficial mutation in their genetic material that accords them the capability to survive in an antibiotic. The individuals are hence able to survive and reproduce more than those individuals without the mutation. There is, therefore, a genetic shift in the population in favor of the resistant genotype. After generations, the whole population becomes antibiotic resistant.






6 0
3 years ago
1. Which of the following traits is not characteristic of animals?
PSYCHO15rus [73]
1. <span>composed of cells with cell walls
2. </span><span>Vertebrates contain a backbone, while invertebrates do not.</span>
5 0
3 years ago
Other questions:
  • Scientists have recently modified the bacteria that cause tooth decay by inserting a fragment of DNA into the bacteria's DNA tha
    6·2 answers
  • How do nitrates get into the surface water
    9·1 answer
  • Which of the following is false?
    7·2 answers
  • Word Roots and Origins The word transcription is
    11·1 answer
  • NEED HELP ASAP PLEASE WITH 4,5,6!
    10·1 answer
  • Digestion is controlled by the
    5·2 answers
  • Select the correct answer.
    11·1 answer
  • Molecules consist of microscopic particles called
    10·1 answer
  • A chloroplast is releasing large amounts of oxygen. What does this tell you about what other processes are going on inside the c
    10·1 answer
  • Select the correct statement regarding a chemical synapse.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!