Which of the following is an extinct group of mollusks related to today's chambered nautilus?a. trilobites
b. ammonites
c. foraminifera
d. stromatolites

Answers

Answer 1
Answer: B. ammonites. is an extinct group of mollusks
Answer 2
Answer:

Answer:

The answer is B. Ammonites Hope this helps!


Related Questions

True/False Bonding helps babies build connections in their brains.
The pituitary gland is located in the brain and controls __________.
On an expedition to a barren land that had witnessed volcanic activity, geologists noticed heavy lichen growth on some of the hard lava. In other areas, lichens were replaced by grasses. After many years, the geologists expect to find the area filled with full-grown hardwood trees, grasses, and shrubs. What is this process called?A.Succession B.Mutualism C.Competition
How does a frogs tympanic membrane work
Between 6 and 7 million years ago, the lineage that led to hominins split from the lineage that led to chimpanzees. Which of the following best describes one of the ways that hominins evolved? A. Hominins evolved a smaller skull and smaller brain capable of designing tools. B. Hominins evolved an opposable thumb that enabled hands to grasp objects. C. Hominins evolved shoulder bones that enabled them to walk faster on all four limbs. D. Hominins evolved more chromosomes that enabled them to reason and solve problems.

What are the two groups that plants can be placed in?

Answers

fungi and plantae are the two groups

Secondhand smoke is more dangerous in enclosed spaces. Please select the best answer from the choices provided. T F

Answers

Answer: True

Secondhand smoke is produced from the burning of the tobacco products such as cigars, cigarettes, bidis and pipes. This is smoke which is breathed out or exhaled by the smoking person. The smoke includes toxic gases. Smoking in the enclosed spaces such as homes, workplaces can be hazardous for the smoker as well as for the people present surrounding him or her. An appreciable amount of secondhand smoke in an enclosed space can cause ear infections, asthma attacks, respiratory attacks such as coughing, sneezing and labor breathing, respiratory infections such as pneumonia and bronchitis and a greater risk of sudden infant death is also associated with it.

On the basis of above description, the secondhand smoke is more dangerous in enclosed spaces is true.

True. Secondhand smoke, also known as passive or involuntary smoking, is more dangerous in enclosed spaces.

When someone smokes, the smoke released contains numerous harmful chemicals, including carcinogens, toxic particles, and gases. When this smoke is released into the air, it can linger and accumulate in enclosed spaces, leading to increased exposure for non-smokers in the vicinity.

In enclosed spaces like homes, cars, bars, restaurants, or other indoor areas with poor ventilation, the concentration of secondhand smoke can become significantly higher than in open, outdoor areas. Prolonged exposure to secondhand smoke in such environments poses serious health risks, particularly for vulnerable individuals such as infants, children, pregnant women, elderly people, and those with pre-existing respiratory or cardiovascular conditions.

Research has shown that secondhand smoke exposure can cause a wide range of health problems, including respiratory issues (such as asthma exacerbation and respiratory infections), heart disease, stroke, lung cancer, and even sudden infant death syndrome (SIDS) in infants.

To protect public health, many countries and regions have implemented smoking bans in enclosed public spaces and workplaces to reduce secondhand smoke exposure and its associated health risks. Encouraging smokers to smoke outdoors or in well-ventilated areas can help minimize the impact of secondhand smoke on non-smokers' health.

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What is the difference between genetic engineering and selective breeding

Answers

Selective breeding versus genetic engineering
Selective breeding makes use of existing, naturally present gene variants in a species? and the natural process of breeding. Genetic engineering involves a direct change to an organism's genome in the laboratory.30 Jul 2019

Which of the following sequences is an example of a point mutation of the DNA sequence -A-A-G-T G-C- point)O-A-A-A-T-G-c--G-TA-G-A-A-c-O-A-A-G-G-T-c

Answers

The right answer is A (substitution).

-A-A-G-T G-C-

-A-A-A-T G-C-

In genetics, point mutation is the generic terminology used to describe a mutation that causes a structural change in a gene. This type of mutation can impact between one and ten nucleotides. Insertion mutation, deletion mutation and substitution mutation are the three forms of existing point mutations.


A: A-A-A-T-G-C

There has been a change from a guanine to an adenine at the third base

An electromagnet is a device in which moving electric charges (current) in a coil of wire create a magnet. What’s one advantage of using electromagnets in devices

Answers

Answer:

The prime advantage of using electromagnets in a device is that it can be easily turned on and off.

Explanation:

The formation of electromagnets is done by winding a wire via a magnetic substance and then passing an electric current through it. The durability of the electromagnet relies upon the size of the electric current via the coil and the number of coils.  

On the other hand, the regular magnets do not need power, however, it is reliant upon the kind of material that is, used to produce it. Thus, it is advantageous to utilize electromagnets in comparison to permanent magnets as the strength of the electromagnet can be amended easily by monitoring the concentration of current flowing through it. Thus, it is easy to turn off and on any device containing an electromagnet.  

Electromagnets can be switched on and off. This is good in a scrap yard because they need to pick heavy pieces of metal and then drop it.

The formal duties assigned to the Vice President by the Constitution areA. to provide advice to the President on issues of national security and economic policy.
B. to preside over the Senate and help decide the question of presidential succession.
C. to balance the ticket and preside as Assistant President.
D. not defined.

Answers

to preside over the Senate and help decide the question of presidential succession. i took the test