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
Hunter-Best [27]
2 years ago
14

A researcher has hypothesized that the chemical tributyltin (an additive in boat paint) seeps out of the paint into the water an

d causes reproductive defects in developing marine snails. Which of the following would be a good control in an experiment that tests the effects of tributyltin on developing snails?A. Developing snails are kept in a dry tank to avoid exposure to contaminated water.B. Developing snails are kept in a tank of water and exposed to boat paint that does not contain tributyltinC. Developing snails are kept in a tank of water and exposed to below-expected levels of tributyltin.D. Developing snails are kept in a tank of water that has never been exposed to boat paint.
Biology
1 answer:
balu736 [363]2 years ago
5 0

Developing snails are kept in a tank of water and exposed to boat paint that does not contain tributyltin.

You might be interested in
Which of the following are chemical reactions? Check all that apply
Korolek [52]

Answer:

b and c

Explanation:

In b you'll be mixing and heating up the sauce creating a new compound from  older components and in c, the ultraviolet lights will change your skin cells.

7 0
2 years ago
Read 2 more answers
Which scientist made x-ray diffraction photos of dna?
Marrrta [24]

Rosalind Franklin. is the answer

5 0
2 years ago
Read 2 more answers
Cells are the building blocks for organs and large organ systems, such as the respiratory system. How does your investigation su
atroni [7]

Answer:

Explanation:

An organism is a body which is made up of many organ systems and parts. Organs constitute these organ systems. Then we will notice that these organs are made up of different types of tissues. Tissues are further analyzed under microscope to see millions of cells. By increasing the magnifying power, we can see that the cells are made up of further small molecules called atoms.  

So starting form atom leads to further steps and development steps, an organism is formed. Atoms combine to form cells and each cell in the body perform the same function as our body as a whole perform. No smaller components can perform important functions of body other than cells. That’s y cells are known to be as the fundamental unit of life.  

8 0
3 years ago
Appears to contain a multilobed nucleus. what is the most likely identity of the observed leukocyte?
Brrunno [24]

Neutrophil is the most likely identity of the observed leukocyte

<h3>What is Neutrophil ?</h3>

The most common type of granulocyte in humans are neutrophils, also known as neutrocytes or heterophils, which make up between 40% and 70% of all white blood cells. They are an essential part of the innate immune system, and they have different functions depending on the species.

The bone marrow-produced stem cells are differentiated into the neutrophil-killer and neutrophil-cager subpopulations. Due to their potential ability to access tissues that other cells or substances cannot, they have a limited lifespan and are very migratory. There are two different types of neutrophils: banded and segmented neutrophils (or bands). They belong to the same family of cells as basophils and eosinophils, which is known as PMNs.

To learn more about Neutrophil  from the given link:

brainly.com/question/3206784

#SPJ4

8 0
10 months ago
Give the definition of parasympathetic nervous system?
SashulF [63]

Answer: Autonomic nervous system is made up of 3 divisions; Sympathetic nervous system, parasympathetic nervous system and sympathetic division. All these divisions are involuntary actions where parasympathetic is ultimately responsible for the "rest and digest" part of it. When the body is at rest the parasympathetic nervous system inhibits or lowers high energy requiring bodily functions.

This nervous system will lower any fight or flight response actions such as the release of epinephrine into the blood and enable digestion, urination and defeacation. When engaged in digestion you feel relaxed and at rest, this is solely due to the parasympathetic nevous system.

6 0
2 years ago
Other questions:
  • A wildlife biologist suggests re-introducing the eastern cougar into southern Alabama, reasoning that besides bears, which can s
    14·2 answers
  • 1.
    7·1 answer
  • Plants, like animals, perform cellular respiration. What is the gas released into the environment by breathing? What is the gas
    13·2 answers
  • A mitosis inhibitor chemotherapy drug would ________. bind to antigens on the cancerous cell create an opposite hormonal environ
    5·1 answer
  • What does the term acid mean?
    15·1 answer
  • A pond located in a town was drained to make room for the new factory. Which change is likely to occur?
    9·1 answer
  • The process by which organism change over time is known as
    12·2 answers
  • Which of these is harmed by an ectoparasite in a parasitic relationship?
    14·2 answers
  • The first line of defense involves which structure(s)?
    13·1 answer
  • Which to provide evaluation of force, posture, and duration for the neck trunk and upper arms coupled with muscle function and p
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!