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
atroni [7]
3 years ago
11

Someone plz help me i don't understand these

Biology
2 answers:
frozen [14]3 years ago
6 0
I think the answer is d
olga_2 [115]3 years ago
4 0
1. is A i think
2. is B
3. is D
4. is D
You might be interested in
What causes earthquakes?<br> How are earthquakes measured and how big can they get?
k0ka [10]

Explanation:

Earthquakes are caused by friction at the ends of tectonic plates. WHen they become stuck at their edges from this friction, stress builds up,, and eventually overcomes the friction, becoming an earthquake. Earthquakes are measured on the Richter scale. The largest earthquake ever documented was 9.5 in Chile on May 22nd, 1960.

5 0
2 years ago
Which of the following treatments kills bacteria inside the body?. A. antiseptic B. disinfectant C. vaccine D. antibiotic
Leto [7]
Out of the following choice given, the following treatment that kills bacteria inside the body is antibiotics. The correct answer is D. 
7 0
4 years ago
Read 2 more answers
What is the function of the human skeleton? Check all that apply
pochemuha

Answer:

Some major functions of skeleton are below

Explanation:

Support and shape

bones support soft tissues and serve as attachment site for most muscles and provide shape to the body

Protection

Bones protect critical internal organs, such as brain, spinal cord, heart and lungs.

Movement

skeletal muscles attached with the bones help in moving the body

Mineral homeostasis

Bones serve as store for calcium phosphorus potassium sodium. Through negative feed back mechanisms bones can release and take up minerals to maintain homeostasis

Blood cell production

red and white blood cells are produced in bone marrow, a connective tissue found within bones

8 0
3 years ago
Astrocytes carrying the superoxide dismutase 1 (SOD1G93A) mutation induce wild-type motor neuron degeneration in vivo.
Semenov [28]

As "nurse" cells for neurons in the brain parenchyma, astrocytes are resident glial cells produced from neuroectoderm.

How astrocytes become pathological?

  • Recent research has identified astrocytes as major disease-propagating agents in mutant human superoxide dismutase 1 (mSOD1)-mediated amyotrophic lateral sclerosis (ALS).
  • However, due to the widespread expression of mSOD1 throughout the CNS of the investigated rodent models, in vivo examination of a specific astrocytic effect in amyotrophic lateral sclerosis has proven challenging.
  • In order to understand how mutant astrocytes affect WT MNs and other cell types (microglia and astrocytes) in an in vivo environment, we transplanted SOD1(G93A) glial-restricted precursor cells into the cervical spinal cord of WT rats.
  • SOD1(G93A) glial-restricted progenitor cells that were transplanted survived and successfully differentiated into astrocytes.

Learn more about the Astrocytes with the help of the given link:

brainly.com/question/14747164

#SPJ4

5 0
1 year ago
Earthworm studys. PLS HURRY!
Evgen [1.6K]

Answer:

it bang when they see eachther they frink bang

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • In addition, sperm receive a chemical fluid from the _____________. (This is the most common site of cancer in older men.)
    6·2 answers
  • The process of removal of the body’s wastes is called _____. a. excretion b. gas exchange c. filtration d. respiration
    13·2 answers
  • "which is responsible for more cancer deaths in women: breast, colon and rectum, pancreas, or ovary?"
    9·1 answer
  • Redi's experiments were accepted by all as proof of the theory of biogenesis.
    13·1 answer
  • What's the capstone project? <br><br>is it important? ​
    15·1 answer
  • If a female genotype Dd mates with a male genotype dd, what are the possible genotypes of the haploid gametes they produce
    6·2 answers
  • Which kind of volcano is most likely to form from this plate movement ?
    7·1 answer
  • An atmospheric scientist used a high-resolution camera to take images of snowflakes during a snowstorm. The scientist observed t
    10·2 answers
  • Question 6 of 10
    5·1 answer
  • Consider the skeleton.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!