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
adelina 88 [10]
3 years ago
7

Plz help I need it ASAP

Biology
2 answers:
bazaltina [42]3 years ago
8 0

Answer:

First answer

Explanation:

An organism reacts to a stimulus which results in and effect. In this example the eye being close to something sees the thing so it tries to protect itself.

timurjin [86]3 years ago
5 0

Answer:

D

Explanation:

You might be interested in
Although earth is estimated to be 4.5 billion years old, and although life first appeared about 4 billion years ago, plants did
timurjin [86]
470 million years ago
3 0
3 years ago
What fossil is evidence that animals moved from living in the water to dry land? If u could help thanks!
Sedbober [7]

Answer:

<em>Tiktaalik roseae</em>

Explanation:

The discovery of the fossil, <em>Tiktaalik roseae</em> on a Canadian island gives credence to the fact that animals moved from living in water to living on dry land. This fish which has feature of land animals such as a neck, skull, and ribs is believed to have lived some 375 million years ago. It also has features of fish such as the fins and scales.

The discovery of this fossil is important to scientists because it confirmed their believe that there should be an organism that would prove that life transitioned from water to land. The fossil was discovered in the year 2004.

6 0
2 years ago
What is the smallest unit in biology ?​
erma4kov [3.2K]

Answer:

A cell is the smallest unit of a living thing.

6 0
2 years ago
Read 2 more answers
Newsweek in 1989 reported that 60% of young children have blood lead levels that could impair their neurological development. As
Kamila [148]

Answer:

The answer is 83.38%.

Explanation:

The probability of young children having blood levels that impair their neurological development is given as 60% in the question. To find the probability of at least 5 children out of 10 in a sample having said blood levels, we need to use the binomial probability.

n represents the total number of children in the sample so n = 10 and p is the probability of the children having blood levels causing the problem which is 60% so p = 0.6.

We want the probability of it being observed for 5 or more children and that is P(x\geq 5). If we subtract the P( x\leq 4) from 1, which is the probability of not observing the condition in 5 or more children, we will have the P(x\geq 5).

1 - P(x\leq 4) = 1 - pbinom(4, 10, 0.6) which are the probability range in the function, the sample size and the probability of observing the condition respectively.

The result is 1 - 0.1662 = 0.8338 which means that the probability that is asked is 83.38%.

I hope this answer helps.  

8 0
3 years ago
Does the human body have salt water?
Nataliya [291]

Answer:

he human body contains many salts, of which sodium chloride is the major one, making up around 0.4 per cent of the body's weight at a concentration pretty well equivalent to that in seawater.

Explanation:

8 0
3 years ago
Other questions:
  • Dhara was recently in a car accident. her doctor told her that she has frontal lobe damage. how will this damage affect dhara? s
    6·1 answer
  • Which of these statements best explains how continuation of space exploration would benefit humans?
    11·1 answer
  • A molecule that can be used as a molecular clock has a neutral mutation rate of one mutation per 5 million years. How many years
    6·2 answers
  • Quetipo de estímulos captan los fotorreceptores
    15·1 answer
  • Hydroxylamine is a mutagen that acts only on cytosine and causes C--&gt;T and G--&gt;A base pair changes (i.e. it causes transit
    14·1 answer
  • What is the name of the photosynthetic process in which light energy is converted into chemical energy in ATP and NADPH
    12·1 answer
  • What is the role of the alcohol in this experiment?​
    8·1 answer
  • What is a society that is able to survive and function over a specified time?​
    11·1 answer
  • YA'LL ARE SMART!! PLEASE HELP!!!
    15·2 answers
  • NEED HELP ASAP PLEASE Describe the controversy surrounding dissociative identity disorder as a diagnosis and explain how stress
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!